Cool Cobalt Sheen

#1d28a5

Notes

Cool Cobalt Sheen (#1D28A5) is a true blue with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (235°, 70%, 38%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#1d28a5

RGB

rgb(29, 40, 165)

HSL

hsl(235, 70%, 38%)